What color is Poster, Poster for Biblio's, New York: Poetry Readings ?

Source Crayola® CSS3 CSS4
#d1d3e6
 
#c5d0e6
periwinkle
#dcdcdc
gainsboro
#dcdcdc
gainsboro
#4a4b50
 
#414a4c
outer space
#2f4f4f
dark slate gray
#2f4f4f
darkslategrey